摘要
本文研究了用热释光分析仪鉴定食品辐照与否的具体方法和鉴定标准。在分离样品中的矿物质后,测量其热释光发光曲线的发光峰面积积分值G1,矿物质经1kGy的剂量照射后,再测量其热释光发光曲线的发光峰面积积分值G2;以G1/G2之值作为样品是否经过辐照的判断依据。通过对国家允许辐照的6大类食品中85个样品的检测分析得出:当G1/G2≥0.10时,可判定样品是辐照过的;当G1/G2<0.10时,判定样品是未辐照过的。
The verification method and standard were studied to be used for identification whether food was irradiated or not with thermoluminescent dosemeter （TLD）. After the mineral materials were isolated from the samples, its peak area integral G, of the thermoluminescent curve was measured by TLD. Then the mineral materials were irradiated by at dose of 1kGy, and its peak area integral G2 of the thermoluminescen curve was also measured. The ratio of G1/G1 was calculated as criteria whether the sample had already irradiated or not. Eighty five samples from six classes of food which are allowed to be irradiated in China were tested, and concluded that when G1/G2〉0.10, the sample was verified as having been irradiated while G1/G2〈0.10, the sample was verified as having not been irradiated.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2006年第6期164-167,共4页
Food Science
基金
国家"十五"攻关食品安全重大专项(2001BA804A23-2)
关键词
辐照食品
热释光分析
矿物质
鉴定方法
irradiated foods
thermoluminescent analysis
mineral material
verification method
